A 16” 9mm upper on a 80% build lower with a standard AR-15 parts kit. Feeding and firing work great - however, nearly every ejected round ‘stovepipes’ badly. Ammunition is 135 gr. RN / slightly supersonic but haven’t chronographed from this barrel.
A). Do I need to change the buffer/spring? Suggested specs?
B). Reliable vendor for the above?
Thank you.
A). Do I need to change the buffer/spring? Suggested specs?
B). Reliable vendor for the above?
Thank you.